title: Tall P waves associated with severe hypokalemia and combined electrolyte depletion.
abstract: A 32-year-old woman with anorexia nervosa showing tall P waves on electrocardiogram (ECG) was reported. Her ECG showed tall P waves (5.5mm in voltage, lead II) at 2.2mEq/L of serum potassium. After the treatment, P waves decreased in voltage with the normalization of serum potassium. Tall P waves may be considered to be the so-called pseudo-P pulmonale, and added to the criteria of hypokalemia on ECG.
authors.affiliation: Internal Medicine, Seika-cho Hospital, Kyoto, Japan. Electronic address: kkishi@kuhp.kyoto-u.ac.jp.
authors.forename: Chiharu
authors.initials: C
authors.lastname: Kishimoto
authors.affiliation: Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
authors.forename: Kosaku
authors.initials: K
authors.lastname: Tamaru
authors.affiliation: Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Kuwahara
mesh_terms: D000328:Adult; D000465:Algorithms; D001145:Arrhythmias, Cardiac / Q000150:complications* / Q000175:diagnosis*; D004562:Electrocardiography / Q000379:methods*; D006801:Humans; D007008:Hypokalemia / Q000150:complications* / Q000175:diagnosis*; D008297:Male; D014883:Water-Electrolyte Imbalance / Q000150:complications* / Q000175:diagnosis*
keywords: ECG; Electrolytes; Hypokalemia; Pseudo-P pulmonale; Tall P wave